EXPANSION: Instantly add 1 USB 3.0 Ports +3 USB 2.0 Ports to Any compatible device. Transform a single USB port into a full work station. CONVENIENCE: LED Indicators display power status for each port. Individual on/off switches enable you to easily connect and disconnect your devices with the push of a button.Plug and play, easy to install. SPEEDS: Supports transfer speeds of up to 480Mbps (USB 2.0), & 12Mbps (USB 1.1). Fast enough to transfer large files in seconds.USB 3.0, 10 times faster than USB 2.0, transfer rate up to 5Gbps. Compliant with USB 2.0 and 1.1 specifications. COMPATIBILITY: Reverse compatible with USB 1.1 devices. Use with PC, MacBook, iMac, Mac mini, XPS, Flash Drives, & any other USB compatible devices.Reasonable USB interface layout, can support four USB high-speed devices at the same time EASY SETUP: No driver installation required; Plug & Play and Hot Swappable. Does NOT support charging. Support overload voltage and overcurrent protection functions, which can effectively protect the connected equipment and the HUB itself when the power is suddenly turned on. Stable performance, durable and reliable.